A novel method to characterize the effect from the diffusion of Cu in through silicon via (TSV)

Autor: Min-Soo Yoo, Jong-Ho Lee, Sung-Joo Hong, Kyung-Do Kim, Byung-Gook Park, Chan-Hyeong Park, Sung-Kye Park, Yong-Taik Kim, Kwi-Wook Kim
Rok vydání: 2015
Předmět:
Zdroj: 2015 IEEE International Electron Devices Meeting (IEDM).
Popis: To characterize electrically the effect of the Cu diffusion in TSVs, a new test pattern is proposed and its effectiveness is verified experimentally. The test pattern has a shallow n+ region formed in an n-well region butted to the TSV dielectric surrounding the TSV. Through the n+/n well region, we can measure the diode and gated diode currents, the charge pumping current, and C-V to accurately analyze the effect. Our approach is demonstrated to be very useful by investigating the Cu diffusion effect in samples with two different barrier metal thicknesses.
Databáze: OpenAIRE